Fluxing oil



Patented Sept. 15, 1925.

UNITED .s'rArss ATENT OFFICE.

I. BURTON, 01! CHICAGO, ILLINOIS, ASSIGNOB TO BT AIIDLBD O11 COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION 01' INDIANA. I

- v rauxme on.

Io Drawing.

To all whom it mag comm:

Be it known that I, WILLIAM M. B m- TON; a citizen of the United States, resldlng at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Im rovement in Fluxing Oils, of which th fol owing is a specification.

The present invention relates to the 'art'oftreating petroleum oils and will be fully understood from the following specification.

It has been discovered that it is possible to produce from a' petroleum base by the process which will hereinafter bedescribed, a product which forms a erfect flux for all commercially used aspha ts, not only synthetic asphalts' or asphalts produced from,

mineral oils but (likewise natural asphalt such as Trinidad and Cuban asphalt.

- The product used as a base forthe prepa ration of the fluxing oil of the' resent invention is the tar or residue res ting fromthe operation of-cracking. petroleum hydro carbons according to 'the method described a .in the atent to William M. Burton, No. 1,049,66 of January 7, 1913. Asset forth in the said patent, a quantity of relativelyheavy-petroleum hydrocarbonsfsuch as fuel oil or gas oil,havin a boiling point of about 500 F. and upwar s, is distilled under pres- 'sure,,c0nditions bein such that decom 'osition or;v cracking of t eoil occurs and t are V isproduced adistillate of the character of gasoline. Simultaneously with this c-rackmg operation and the formation f the light distillate referred to there is change in the character of the oil body within the still.

The distillation process is ordinarily inter-- rupted when there still'remains within the "llformed an introduced into another still,

equippedwith means; for 'supplying openst'eam to' the 'still contents.- 1 The charge of pressure tar havingJbeen introduced into this still is now subjected W to distillation, the'body of. the still being in the usual manner and open steam.

pable of flu'xing Application filed November 81, 1818. Serial Io. 888,585.

" si-multaneousl ,blown throu' h the oil body within the 'sti Samples 0 the contents of the still are taken from time to time and tested for specific gravity and] viscosity. When the specific gravity has reached about 1.06 (at F.) the Enlerl-viscositywill be about 6 (at 212 F.). at an-end. The contents of the still are withdrawn and constitute the fluxing oil of the resent invention. As stated above, this oil s found to be a perfect flux, readily mixm in all proportions with both the nature and'artificial-asphalts known to the trade. While in the foregoing there is described a specific process in accordance with the invention, together with the exact characteristics of' the product produced thereby, it

will be understood that this is by way of illustration only and that the invention is not limited to the detailed specifications given, except in so far as these form a art of the accompanying claims, in which it is intended to claim all novelty inherent in; the

invention as broadly as is permissiblein view of the prior art. k What is claimed is):' 1. A residue of petroleum distillation canatural and artificial asphalts and having an Engler viscosity at 212 -F'..of the order of 6 and a specific grav-- ity of the order of 1.06 'at 60 F.

2.- The a?haltfluxing oil constituting a liquid resi ue having a "specific tarry residue of the apetroleum, oil, said of li ht'er constituents.

3. e method of fluxing oil which cons sts in distilling under pressure a etroleum. product, of the approximate c aracter of fuel oiluntil a substantial sroportion of said product has been converts into hydrocarbons of lower boil ing point and distilled 011, and subjecting the tarry residue of such pressure distillation 'to distillation in the presence of'o'p'en steam until its Engler viscosity at 2129. F.

ressure, cracking of. uxmg' oil being free is approximately '6.

u avity slightlyabove that of water and havnig the characteristics of an oil derived fromthej.

M. BURTON.

e process 1s now inducing an asplialt' 

